using ReSharper annotations for a TryParse workalike

tryparse_annotations.cs

//taken from https://resharper-support.jetbrains.com/hc/en-us/community/posts/206650785-Can-I-handle-not-initialized-warnings-with-Jetbrains-Annotations-
[ContractAnnotation("=> false, target:null; => true, target:notnull")]
private bool TryFindWorkbook([NotNull] Excel.Workbooks workbooks, [CanBeNull] out Excel.Workbook target)
{
    Requires.NotNull(workbooks, nameof(workbooks));

    foreach (Excel.Workbook workbook in workbooks)
    {
        if (workbook.Name == cellLocation.WorkBookName)
        {
            target = workbook;
            return true;
        }
    }
    target = null;
    return false;
}